Fluid-circulating indicator.



G. KOEHLER, JR. FLUID GIRGULATING INDICATOR.

APPLIUATION FILED JAN. 29, 1912.

1,038, 1 55. Patented Sept. 10, 1912.

Gilda/1e UNITED STATES PATENT OFFICE.

GUSTAVE KOEHLER, JR, 0! CINCINNATI, OHIO.

FLUID-CIRGULATIN G INDICATOR.

Specification or .Letters Patent. Application filed January 29, 1912. Serial No.

Patented Sept. 10, 1912. 674,053. I

To all whom it may concern:

Be it known that I, GUsrAvn Konrrnnn, Jr., a citizen of the United States, resrdmg at Cincinnati, in the county of Hamllton and State of Ohio, have invented a new and useful Improvement in Fluid-Circulating Indicators, of which the following 1s a specification.

This invention relates to a device for 1ndicating the circulating of a fluid through a gage, and comprises a suitable gage along with means for directing water from a p pe upwardly into the gage and then passlng the water back again to the pipe, a metal float being arranged in the gage, the said float being forced by the current of water into the upper portion of the gage when the water is freely circulating, and dropping to the bottom of the gage when the water ceases to circulate, or when the circulation is so slow that the current through the gage does not exert suiticient pressure to maintain the float in elevated position.

In the accompanying drawings, Figure 1 is a vertical section through the device. Fig. 2 is an end View, looking toward the right of Fig. 1. Fig. 3 is a horizontal section on the line 3-3 of Fig. 1.

In the drawings, 1 represents a water pipe SGCtlOIljVhlCll is adapted to be inserted in the pipe system through which the circulation is to be maintained. This pipe section is provided upon its upper side with openings 2 and 3 and upon said upper-side is formed a cylindrical casing 4, cut out upon opposite sides as shown at 5 to form sight openings and within said casing is arranged a cylindrical glass gage 6. This gage is concentric with the opening 2 in the top of the pipe 1. The gage is held in place by a suitable nut 7, which is threaded into the upper portion of the casing 4 and bears upon the upper portion of the gage, suitable packing material being of course placed at both top and bottom of the gage. A hollow side extension 8 semi-cylindrical in cross section is carried by one side of the casing 4 and communicates with the upper portion of the casing, above the gage and also with the pipe 1 through in Fig. 1, the pipe, 8 can all be cast in of the casing 4 is closed by threaded cap 9, which is provided with a depending pin 10, which pin is provided with a shoulder 11 adjacent the upper edge the opening 3. As shown the casing and extension one piece. The upper end rect the current of water upwardly through the opening 2. As long as there is a circulation of water in the direction of the arrows, the float 13 will be held in the position shown in dotted lines in Fig. l but if the full lines.

What I claim is:

1. The combination with a water pipe having two openings in its upper side, an inclined partition in said pipe and between (1 openings, a gage in communication with both of said openings and a float of a material which would normally sink, said float being arranged in said gage and in alinement with one of said openings.

2. The combination with a pipe, of a gage upper side of the pipe, carried by one side of said gageand communicating with the top of the gage and also communicating at its bottom with the pipe, said pipe having also an opening communicating with the bottom of the gage, an inclined. wall arranged in the pipe between the gage and the extension and adapted to direct the current of water through the last mentioned opening into the gage, and a metal float arranged in said gage and in alinement with said openmg.

3. A device of the kind described comprising a pipe, a metal casing having sight openings therein, said casing being mounted upon the pipe, the pipe having an opening on its upper side concentric with said casing, a glass gage arranged in the casing, a cap inclosing the casing, a depending pin centrally carried by the ca a metal float the casing and the said extension, as and for slidable lipen sald pin:1 a si e extension carthe purpose set forth.

ried by te casing sai extension communieating at the top with the upper portion GUSTAVE KOEHLER of the casing and at the bottoin with the Witnesses: pipe, and a partition arranged 1n the pipe FRANK G. MUs'rIN, between the opening communicating with GUSTAVE KoEHLnR, SR. 

